At 30 June 2017 PSC had a $5 million secured bank loan with a maturity of 30 June 2022 and an interest rate of 6% p.a. compounded quarterly. The scheduled repayments are $100,000 every three months with the initial $100,000 payment due on 30 June 2018 and the final $100,000 payment due on 30 June 2021. What is the amount of the final one-off repayment that is due on 30 June 2022 to fully pay off the loan?